Balloon support and sealing device



FIG. 1 is a perspective view of a balloon support and sealing device showing my new design in use, with the broken lines shown for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a balloon support and sealing device, as shown and described. 